Britain's Princess Anne lays flowers paying respect to Srebrenica massacre victims during a burial ceremony at the Potocari Memorial Cemetery in Srebrenica on July 11, 2015. Bosnian Muslims marked the 20th anniversary of the 1995 Srebrenica massacre by burying 136 newly identified victims. AFP PHOTO / ELVIS BARUKCIC        (Photo credit should read ELVIS BARUKCIC/AFP via Getty Images)